I like the way you think!
I’d make it one movie, rather than a trilogy. There’s basically one movie’s worth of plot: “Anakin betrays the Jedi”. There might be room for a second movie AFTER Anakin betrays the Jedi, but IMO it was spending two movies twiddling around when everyone KNEW where the plot was going that really killed the prequels.
Somebody’s been reading fanfic written by 14 year old girls, hasn’t he?